How many turning points does the function f(x)= -4x^3 +15x^2 -8x - 3 have
help me not fail math
Last edited by mr fantastic; Jun 30th 2009 at 02:32 PM.
Reason: Added post title to main body of post
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Originally Posted by MR FRESH help me not fail math A polynomial of degree n, has at most n-1 turning points. Maybe that bit of info will help you.
Originally Posted by MR FRESH How many turning points does the function f(x)= -4x^3 +15x^2 -8x - 3 have
help me not fail math It has one turning point between each pair or roots of odd multiplicity and a turning point at each root of even multiplicity.
This is a cubic so it has either 1 or 3 real roots (counting multiplicities) find them and the answer will be obvious.
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